Loom for weaving bordered fabrics



I 2 Sheets-$11661; 1'.

(No Model.)

J eoss & W VARLEY LO OM FOR WEAVING BORDERBD PABRIGS. No. 520,421.

Patentqd M'h ,'y -29, 1894.

R mvsu'ron)? mi q v I Q: 6 9 M,

6N0 Model.) 2 SheetsSheet 2. J. GOSS 82; W. VARLEY.

WITNESSES THE NAYIONAL LIYHOGRAFH which it appertains to JOSEPH GOSSANDWILLIAM VARLEY, OF FALL RIVER, MASSACHUSETTS.

LOOM FOR WEAVI NG BORDERED FABRICS.

SPECIFICATION forming part of Letters Patent No. 520,421, dated May 29,1894. Application filed December 10, 1891- Seria1No.4=141 (N0 modem TowZZ whom it may concern.-

Be it known that we, JOSEPH Goss, a citizen of the United States, andWVILLIAM VAR- LES Z, a sub ect of the Queen of Great Britain, residingat Fall River, in the county of Bristol and State of Massachusetts, haveinvented certain new and useful Improvements in Looms for WeavingBordered Fabrics; and we do declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to make and use the same, reference being had to theaccompanying drawings, and to the letters of reference marked thereon,which form a part of this specification.

Our invention relates to looms, and especially to looms that weavefigured goods, or goods having a border, and the like. We have describedand shown a loom of this kind In our former patent, No. 414,523, datedNovember 5, 1889, upon which the present invention is an improvement. Inmaking small bordered goods, such as handkerchiefs, it is desirable tocontinue the same pattern all around the border. In the old style oflooms this could only be done by running the pattern chain all the time,and making it long enough to provide for the plain portions, withfigured margins, as well as for the transversefigured portion. In ourpatent we have described a loom in which the pattern chain can beautomatically stopped when the plain goods are to be woven, andautomatically started again when a figure is to be produced. By thisarrangement however, the plain port on of the goods, being produced bythe continuous operation of the same set of harnesses, can have onlysuch pattern in the margin as can be produced by arranging the warpthreads before beginning to Weave, the pattern chain being inoperativeduring this portion of the weaving. This limits very seriously thedesigns that can be produced in the margin. Those portions of the goodsthat are controlled by the pattern chain can have of course an infinitevariety of designs imparted to the figure. In order to enable thepatterns in the margins to be variedequally with those in the transversestripes, and yet be free from the necessity of continuously operating along pattern chain, we have inother chain runs intermittingly, beingpro-.

vided with automatic stopping and starting mechanisms, preferably thoseformerly patented to us, whereby it effects the weaving of plain centersor other plain portions of the goods, and also the figured transversestripes. Certain improvements in the automatic starting devices are alsoshown, described and claimed.

In the drawings, Figure 1 is an end view of a portion of a right-hand(lobby-head loom, embodying our improvements. Fig. 2 is a perspectiveview of the starting mechanism. Fig. 3 is a front view on a smallerscale, and Fig. 4 a detail on a larger scale of the starting andstopping pawls, ratchet wheels and neighboring parts. Fig. 5 is a planview of some of the parts shown in Fig. 1.

The same reference letters are used in all the figures.

To accomplish the main object of our invention, we divide the patternchain barrel into two parts, A, A, placed preferably on the same axialline, and mounted on independent shafts 00,00. The abutting ends of theshafts are journaled in a common bearing 13, which consists preferablyof a disk with chamfered edges, having an arm provided with ears I), bymeans of which it is bolted to abar C that extends across behind thebarrels and is secured to or formed integral with the end bearingsB forthe shafts. Each shaft 0,, a is provided with the usual detent orstopwheel, D, D, and with a ratchet wheel E, E, by which it is rotated stepby step to feed the pattern chains X, X. The ratchet wheels are actuatedby pawls F, F, pivoted to the rocking T-heads G of the dobby, whichoperate continually in a well-known ,manner. The barrel A and the chainX are intended to control the harnesses that form the figure ICO in themargin of the goods. This barrel then, must operate continuously, sincethe figure is formed throughout and near the selvage of the goods. Whenthe loom is running, therefore, the pawl F is allowed to actuate thewheel E without stopping, and it follows that any desired design can beWoven into the margin. The other barrel A and pattern chain X, areintended to control the harnesses that form the figure in the transversestripes, as they are reached, so as to constitute with the margin, afigured border for the ends of the handkerchief or other article that isbeing woven. For this reason the barrel is provided with means forstarting it automatically when a transverse stripe is to be woven, andfor automatically stopping it again when the stripe has been completed,and the plain center of the handkerchief is to be woven.

The means for stopping the barrel are preferably the same as those shownin our former patent, to wit: A harness lever H operated by a specialpin in the pattern chain X is connected with a lever I, the lower end ofwhich has a finger t projecting under the working pawl F. When the jackis operated it moves the lever which lifts the pawl out of engagementwith its ratchet wheel E, thereby stopping the chain.

The starting mechanism has been modified somewhat from the form shown inour patent. The starting ratchet E is secured upon the shafta adjacentto the working ratchet wheel E, instead of at the other end of theshaft. The starting pawl F is mounted upon the same stud f as theworking pawl F, so that they lie side by side. The constantly slowlyrotating cam K is the same as in the former patent, having a removablesegment is in which are formed suitable notches P. The lever L is nowarranged horizontally above the cam with its tooth or spur Z resting onthe periphery thereof, so as to drop more surely and promptly, when anotch P comes under the spur. Mounted upon a bearing secured to theframe of the loom is a lever N, having a long right-angled finger 'n onits short arm, extending to a point over the lever L. A rod M,adjustably secured by nuts in holes in the ends of the levers,communicates the action of the cam to the lever N. A series ofholes-provides for the variations of the effective lengths of thelevers. The long arm of the lever N has an eye n, which engages with oneend of a third lever O, suitably mounted near the end of the startingpawl F and having a finger lying under and normally supporting said pawlout of engagement with its ratchet wheel E as shown in Figs. 1 and 4.When the leverL drops as shown in Fig. 2, the pawl F is simultaneouslydropped upon its ratchet wheel, and operates temporarily to start thepattern chain X as set forth in our former patent.

It will be seen that by our invention we can use very short patternchains. The pat tern chain X is arranged to control a'certain set ofharnesses that carry the warp threads in which the marginal figures arewoven. Since this figure will be repeated frequently, sometimes severaltimes in a single article, this chain can be quite short. Moreover, theother pattern chain X, is only required to move when the figure in thetransverse stripe is to be woven, so that it too, can be short. That barof the chain in which is placed the special pin, that stops thechain,has its other pins so arranged that the harnesses controlledthereby will raise and lower alternate warpthreads, thereby producingthe plain goods, as described in our former patent. This chain X ofcourse controls all the warp-threads except those in the margins, Whichare controlled by the chain X, as stated above.

We have for the sake of clearness, shown and described our inventionapplied to a dobby-head loom, such as the well known Hattersly and Hilldobby, shown in British Patent No. 1,092 of 1867.

The operation of our invention is as follows: The rocking T-heads of thedobby continuously operate the pawls F F F and the ratchet wheels E E.The pawl F and its barrel A are allowed to run without stopping in orderto form the figure in the bordernear the selvage of the goods. Thebarrel A, however, which controls the harnesses that form the figure inthe transverse stripes, as they are reached, (supposing a handkerchiefto be the article being woven) must be stopped when the stripe has beencompleted, and started again when another stripe is to be made. Thestopping is accomplished by the jack H operated by a special pin in thepattern chain X and connected with the lever I, which has a finger i tolift the pawl F off the ratchet wheel E. The barrel now remainsstationary until the spur Z on the lever L drops into a notch on theconstantly running cam K, and thereby operates the connected leversN O,the latter of which temporarily lowers the starting pawl E intoengagement with its ratchet wheel E As soon as the barrel A is started,the special pin in the chain which controls the jack H is carried along,and the jack becomes inoperative, permitting the main driving pawl F tore-engage its ratchet. The spur Z now rides up out of the notch in thecam K, and the lever Olifts the pawl F away from the starting ratchet,in which position it remains until the barrel Aagain stops, and itbecomes necessary to start it once more.

Having thus fully set forth our invention, what we claim, and desire tosecure by Letters Patent, is

1. In a loom for weaving bordered fabrics, the combination with thedobby mechanism, of two pattern chain barrels, one of which rotatescontinuously and the other intermittingly, each controlling a separateportion of the warp, a separate driving mechanism for each barrel, adevice for disengaging the driving mechanism of the intermittingly r0-tating barrel, operating connections between said device and the dobbymechanism, a second driving mechanism for saidintermitting- 1y rotatingbarrel, and connected therefrom to the constantly running parts of theloom, whereby at a predetermined time said second driving mechanism istemporarily operated to start the intermittingly rotating barrel,substantially as described.

2. In a loom for weaving bordered fabrics, the combination with thedobby mechanism, of two separate pattern chain barrels, mounted onindependent shafts, and each controlling its own separate portion of thewarp, a ratchet wheel and pawl for driving one of said barrelscontinuously, a ratchet wheel and pawl for driving the other barrelinter- JOSEPH Goss. WM. VARLEY.

YVitnesses:

ABBA N. LINCOLN, CHARLES L. FOOTE.

